I am having problems building boost 1.42.0 using MinGW. The bootstrap.sh script only works if I specify 'mingw' as the toolset. The resulting bjam tool doesn't work though. It doesn't seem to support mingw as a toolset, but I am unable to force it to use something else. I am using WinXP SP3, MinGW GCC 3.4.5. Just running ./bootstrap.sh yields: $ ./bootstrap.sh Building Boost.Jam with toolset gcc... Failed to build Boost.Jam Consult 'bootstrap.log' for more details The log contents are at the bottom of this email. If I instead specify mingw as the toolset, it works: $ ./bootstrap.sh --with-toolset=mingw Building Boost.Jam with toolset mingw... tools/jam/src/bin.ntx86/bjam Unicode/ICU support for Boost.Regex?... not found. Backing up existing Boost.Build configuration in project-config.jam.3 Generating Boost.Build configuration in project-config.jam... Bootstrapping is done. To build, run: ./bjam etc... Now if I run ./bjam.exe, I get the following error: $ ./bjam.exe mingw.jam: No such file or directory c:/Programming/C/boost_1_42_0/tools/build/v2/build\toolset.jam:38: in toolset.using rule mingw.init unknown in module toolset. c:/Programming/C/boost_1_42_0/tools/build/v2/build\project.jam:884: in using project-config.jam:12: in modules.load c:/Programming/C/boost_1_42_0/tools/build/v2\build-system.jam:241: in load-config c:/Programming/C/boost_1_42_0/tools/build/v2\build-system.jam:407: in load-configuration-files c:/Programming/C/boost_1_42_0/tools/build/v2\build-system.jam:538: in load c:\Programming\C\boost_1_42_0\tools\build\v2/kernel\modules.jam:283: in import c:\Programming\C\boost_1_42_0\tools\build\v2\kernel\bootstrap.jam:142: in boost-build c:\Programming\C\boost_1_42_0\boost-build.jam:17: in module scope If I try to specify gcc as the toolset via: $ ./bjam.exe toolset=gcc I get the exact same error. It's still trying to find 'mingw.jam'. The "Getting Started" documentation, as far as providing troubleshooting help, seems to assume the bjam command will work, if provided the proper toolset. So I'm stuck now. Has anyone out there got the latest boost libs built under MinGW? Andy Failed bootstrap.log contents: ### ### Using 'gcc' toolset. ### rm -rf bootstrap mkdir bootstrap gcc -o bootstrap/jam0 command.c compile.c debug.c expand.c glob.c hash.c hdrmacro.c headers.c jam.c jambase.c jamgram.c lists.c make.c make1.c newstr.c option.c output.c parse.c pathunix.c pathvms.c regexp.c rules.c scan.c search.c subst.c timestamp.c variable.c modules.c strings.c filesys.c builtins.c pwd.c class.c native.c w32_getreg.c modules/set.c modules/path.c modules/regex.c modules/property-set.c modules/sequence.c modules/order.c execunix.c fileunix.c execunix.c:17:26: sys/resource.h: No such file or directory execunix.c:18:23: sys/times.h: No such file or directory execunix.c:19:22: sys/wait.h: No such file or directory execunix.c: In function `exec_cmd': execunix.c:193: error: `F_SETFL' undeclared (first use in this function) execunix.c:193: error: (Each undeclared identifier is reported only once execunix.c:193: error: for each function it appears in.) execunix.c:193: error: `O_NONBLOCK' undeclared (first use in this function) execunix.c:212: error: storage size of 'buf' isn't known execunix.c:216: error: `_SC_CLK_TCK' undeclared (first use in this function) execunix.c:243: error: storage size of 'r_limit' isn't known execunix.c:246: error: `RLIMIT_CPU' undeclared (first use in this function) execunix.c:249: warning: passing arg 2 of `execvp' from incompatible pointer type execunix.c: At top level: execunix.c:385: error: syntax error before "fd_set" execunix.c: In function `populate_file_descriptors': execunix.c:388: error: storage size of 'buf' isn't known execunix.c:393: error: `fds' undeclared (first use in this function) execunix.c:418: error: `SIGKILL' undeclared (first use in this function) execunix.c:423: error: `fmax' undeclared (first use in this function) execunix.c: In function `exec_wait': execunix.c:441: error: `fd_set' undeclared (first use in this function) execunix.c:441: error: syntax error before "fds" execunix.c:442: error: storage size of 'new_time' isn't known execunix.c:453: error: `fds' undeclared (first use in this function) execunix.c:459: error: invalid use of undefined type `struct timeval' execunix.c:460: error: invalid use of undefined type `struct timeval' execunix.c:519: error: invalid use of undefined type `struct tms' execunix.c:520: error: invalid use of undefined type `struct tms' execunix.c:524: error: `old_time' has an incomplete type execunix.c: At top level: execunix.c:69: error: storage size of `tv' isn't known execunix.c:73: error: storage size of `old_time' isn't known fileunix.c:97:17: ar.h: No such file or directory fileunix.c: In function `file_archscan': fileunix.c:273: error: storage size of 'ar_hdr' isn't known fileunix.c:282: error: `SARMAG' undeclared (first use in this function) fileunix.c:282: error: (Each undeclared identifier is reported only once fileunix.c:282: error: for each function it appears in.) fileunix.c:283: error: `ARMAG' undeclared (first use in this function) fileunix.c:294: error: invalid application of `sizeof' to incomplete type `ar_hdr' fileunix.c:294: error: invalid application of `sizeof' to incomplete type `ar_hdr' fileunix.c:295: error: `ARFMAG' undeclared (first use in this function) fileunix.c:326: error: invalid application of `sizeof' to incomplete type `ar_hdr' fileunix.c:356: error: invalid application of `sizeof' to incomplete type `ar_hdr'